Warranty Assurance:

At K2 Industries, your satisfaction is our priority, and we stand behind the quality of our products. Here's a brief overview of our warranty:

Defect Coverage:
If you find a defect after receiving your order, get in touch with us. We're committed to resolving the issue, whether it involves a replacement, repair, or refund.

Installation Note:
Please inspect your purchase before installation. Unfortunately, damages post-installation are not covered, so ensure everything looks good beforehand.

Claims Made Simple:
Need to make a claim? Reach out to us at support@k2-industries.com. We're here to assist you. Just keep your original packaging and documentation handy.

Your Satisfaction Matters:
Your trust in K2 Industries is appreciated. We're dedicated to ensuring your satisfaction with our quality automotive parts.

Shipping Information:

At K2 Industries, we strive to provide a seamless and efficient shopping experience for automotive enthusiasts like you. Our commitment is to deliver high-quality parts to your doorstep with the utmost care.

Fast and Reliable Shipping:
Many of our products are stocked in our local warehouse, ensuring swift processing and delivery. Orders placed for these items typically ship within 2-5 business days, allowing you to get your parts in no time.

Extended Selection, Global Reach:
To offer you a broader range of automotive parts, some items are sourced from trusted suppliers around the world. While these products might have a slightly longer processing time, we assure you that the wait is worth it for the exceptional quality and value they bring.

Shipping Transparency:
For products shipped internationally, we provide estimated delivery times on the product page. Rest assured, we are continually working to optimize our supply chain and minimize any potential delays.

Combined Shipments:
To streamline your shopping experience, if your order includes items from both our local warehouse and international suppliers, they may be shipped separately. You will receive separate tracking information for each shipment.

Questions or Concerns?
If you have any questions about shipping or would like assistance tracking your order, our dedicated customer support team is here to help. Feel free to reach out to us at support@k2-industries.com.

You can also track your order here

Thank you for choosing K2 Industries for your automotive needs. We appreciate your trust in us.

Happy Driving!

Audi TTRS (Mk3) Valved Cat-Back Exhaust System

3" T304 Stainless Steel with OEM-Style Electronic Valve Control

Overview

The five-cylinder soundtrack is iconic—the factory cat-back just keeps it on too short a leash. The Valvetronic Designs Valved Cat-Back for the Mk3 TTRS increases system diameter to 3 inches for significantly improved flow and a sharper, more characterful note without sacrificing daily comfort.

At the heart of the design is our rear Y-section: straight-through when valves are open for maximum presence, and routed through a quad-chamber center muffler when closed for quiet, refined cruising. The dream exhaust for Audi’s modern 5-cylinder is here.

Why It Works

• 3" Free-Flow Architecture: Reduces back pressure and unlocks response through the rev range.

• Dual-Path Rear Y-Section: Straight-through (open) or muffled (closed) for two distinct personalities.

• System Tuning as a Whole: Designed as a cohesive cat-back for consistent tone and perfect fit.

Sound & Control

• Valves Open: Uninterrupted flow to the tips—crisp, aggressive 5-cylinder character.

• Valves Closed: Gas passes through the quad-chamber center muffler—significantly reduced volume, highway-friendly.

• OEM Integration: Uses OEM-style electronically actuated valves; compatible with OEM Audi valve control.

Construction & Quality

• Material: T304 stainless steel throughout.

• Craftsmanship: Precision TIG welds and fully mandrel-bent tubing.

• Weight Savings: 14.8 lb lighter than the factory exhaust.

• Finish & Tips: Premium tips engineered to complement the TTRS rear bumper.

Fitment

• 2017–2020 Audi TTRS (Mk3 / 8S)

Installation Notes

• Direct bolt-on cat-back; no permanent modifications required.

• 100% reversible—return to stock at any time.

What’s Included

• 3" T304 stainless steel valved cat-back system

• Quad-chamber center muffler

• OEM-style electronic valves

• All required clamps and hardware

Specifications

• Tubing Diameter: 3" from front to rear

• Material: T304 stainless steel

• Valves: OEM-style electronic actuation (compatible with OEM control)

• Weight Savings: 14.8 lb vs. OEM

• Design: Dual-path rear Y-section; quad-chamber muffler (valves closed)